1 files changed, 64 insertions, 0 deletions
diff --git a/schulung_tools/drivers/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch b/schulung_tools/drivers/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch
new file mode 100644
index 0000000..0a11a57
--- /dev/null
+++ b/schulung_tools/drivers/hellodriver/patches-leds/0002-hello-add-pci-memory-mapping.patch
@@ -0,0 +1,64 @@
+From 3afec946845a02a8fce94d00abda9b4c8abcbce0 Mon Sep 17 00:00:00 2001
+From: John Ogness <john.ogness@linutronix.de>
+Date: Fri, 15 Feb 2019 11:03:59 +0106
+Subject: [PATCH 3/7] hello: add pci memory mapping
+
+Signed-off-by: John Ogness <john.ogness@linutronix.de>
+---
+ hello.c | 12 +++++++++++-
+ 1 file changed, 11 insertions(+), 1 deletion(-)
+
+diff --git a/hello.c b/hello.c
+index db50302..58a64e5 100644
+--- a/hello.c
++++ b/hello.c
+@@ -12,6 +12,7 @@ struct hello_dev {
+ 	struct device *dev;
+ 	struct cdev cdev;
+ 	unsigned int minor;
++	void __iomem *mem;
+ };
+ 
+ #define HELLO_MAX_DEVICES 10
+@@ -120,6 +121,12 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+ 
+ 	pci_set_master(pdev);
+ 
++	hello->mem = pci_iomap(pdev, 2, 0);
++	if (!hello->mem) {
++		ret = -ENOMEM;
++		goto err_regions;
++	}
++
+ 	devt = MKDEV(MAJOR(hello_devt), hello->minor);
+ 
+ 	cdev_init(&hello->cdev, &hello_fops);
+@@ -127,7 +134,7 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+ 	ret = cdev_add(&hello->cdev, devt, 1);
+ 	if (ret != 0) {
+ 		dev_err(&pdev->dev, "cdev_add failed\n");
+-		goto err_regions;
++		goto err_iomap;
+ 	}
+ 
+ 	dev = device_create(hello_class, &pdev->dev, devt, hello,
+@@ -144,6 +151,8 @@ static int hello_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+ 
+ err_cdev:
+ 	cdev_del(&hello->cdev);
++err_iomap:
++	pci_iounmap(pdev, hello->mem);
+ err_regions:
+ 	pci_release_regions(pdev);
+ err_enable:
+@@ -159,6 +168,7 @@ static void hello_remove(struct pci_dev *pdev)
+ 
+ 	device_destroy(hello_class, MKDEV(MAJOR(hello_devt), hello->minor));
+ 	cdev_del(&hello->cdev);
++	pci_iounmap(pdev, hello->mem);
+ 	pci_release_regions(pdev);
+ 	pci_disable_device(pdev);
+ 	pci_set_drvdata(pdev, NULL);
+-- 
+2.11.0
+